Find and remove duplicate rows by two columns

Question

I read all the relevant duplicated questions/answers and I found this to be the most relevant answer:

INSERT IGNORE INTO temp(MAILING_ID,REPORT_ID) 
SELECT DISTI         


        

Answer 1

You will first need to find your duplicates by grouping on the two fields with a having clause.

    Select identField1, identField2, count(*) FROM yourTable
        GROUP BY identField1, identField2
          HAVING count(*) >1

If this returns what you want, you can then use it as a subquery and

  DELETE FROM yourTable WHERE field in (Select identField1, identField2, count(*) FROM yourTable
        GROUP BY identField1, identField2
          HAVING count(*) >1 )